ceph/src/seastar/dpdk/drivers/bus/fslmc/mc/fsl_mc_sys.h

   1 /* SPDX-License-Identifier: (BSD-3-Clause OR GPL-2.0)
   2  *
   3  * Copyright 2013-2015 Freescale Semiconductor Inc.
   4  * Copyright 2017 NXP
   5  *
   6  */
   7 #ifndef _FSL_MC_SYS_H
   8 #define _FSL_MC_SYS_H
   9
  10 #ifdef __linux_driver__
  11
  12 #include <linux/errno.h>
  13 #include <asm/io.h>
  14 #include <linux/slab.h>
  15
  16 struct fsl_mc_io {
  17         void *regs;
  18 };
  19
  20 #ifndef ENOTSUP
  21 #define ENOTSUP         95
  22 #endif
  23
  24 #define ioread64(_p)        readq(_p)
  25 #define iowrite64(_v, _p)   writeq(_v, _p)
  26
  27 #else /* __linux_driver__ */
  28
  29 #include <stdio.h>
  30 #include <stdint.h>
  31 #include <errno.h>
  32 #include <sys/uio.h>
  33 #include <linux/byteorder/little_endian.h>
  34
  35 #ifndef dmb
  36 #define dmb() {__asm__ __volatile__("" : : : "memory"); }
  37 #endif
  38 #define __iormb()       dmb()
  39 #define __iowmb()       dmb()
  40 #define __arch_getq(a)          (*(volatile uint64_t *)(a))
  41 #define __arch_putq(v, a)       (*(volatile uint64_t *)(a) = (v))
  42 #define __arch_putq32(v, a)     (*(volatile uint32_t *)(a) = (v))
  43 #define readq(c) \
  44         ({ uint64_t __v = __arch_getq(c); __iormb(); __v; })
  45 #define writeq(v, c) \
  46         ({ uint64_t __v = v; __iowmb(); __arch_putq(__v, c); __v; })
  47 #define writeq32(v, c) \
  48         ({ uint32_t __v = v; __iowmb(); __arch_putq32(__v, c); __v; })
  49 #define ioread64(_p)            readq(_p)
  50 #define iowrite64(_v, _p)       writeq(_v, _p)
  51 #define iowrite32(_v, _p)       writeq32(_v, _p)
  52 #define __iomem
  53
  54 /*GPP is supposed to use MC commands with low priority*/
  55 #define CMD_PRI_LOW          0 /*!< Low Priority command indication */
  56
  57 struct fsl_mc_io {
  58         void *regs;
  59 };
  60
  61 #endif /* __linux_driver__ */
  62
  63 #endif /* _FSL_MC_SYS_H */